Description
De-Fuse Nutrient Conditioner & System Sterilising Agent
De-Fuse Nutrient Conditioner is a powerful water, nutrient and growing-system conditioner designed for use in hydroponic, horticultural and soil-based growing environments.
It can be used to help clean irrigation systems, nutrient tanks, hoses, growing equipment and root zones. De-Fuse may also be applied as a foliar spray to support the treatment of common fungal problems such as powdery mildew and Botrytis, commonly known as bud rot.
Suitable for soil and soilless growing media, De-Fuse can be used with coco coir, rockwool, clay pebbles, soil and professional growing mixes.
What Is De-Fuse Nutrient Conditioner?
De-Fuse is a non-systemic sterilising and conditioning agent formulated for horticultural applications.
Its versatile formula can be used throughout the growing area, including:
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Nutrient reservoirs
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Irrigation systems
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Root zones
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Hoses and water lines
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Growing equipment
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Walls and hard surfaces
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Plant foliage
De-Fuse is compatible with most macro and micronutrient solutions and may be applied directly to the root zone or used as a diluted foliar spray.
What Does De-Fuse Do?
De-Fuse helps growers maintain cleaner nutrient systems and growing environments by reducing the buildup of unwanted organic contamination.
It may be used for:
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Conditioning nutrient and irrigation water
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Cleaning hydroponic reservoirs
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Sterilising growing systems
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Cleaning the plant root zone
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Flushing hoses and irrigation lines
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Wiping down walls and equipment
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Supporting the management of powdery mildew
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Supporting the management of Botrytis or bud rot
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Maintaining cleaner soil and soilless growing environments
Its broad range of applications makes it suitable for routine system maintenance as well as targeted root-zone and foliar treatments.
Root-Zone and Nutrient-System Treatment
De-Fuse may be added to the nutrient tank during regular reservoir changes.
When mixed into the solution, it may temporarily produce foam or froth. This normally dissipates quickly.
For easier mixing:
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Turn off air pumps for several minutes.
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Add the recommended amount of De-Fuse to the nutrient tank.
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Mix thoroughly before restarting aeration.
Alternatively, dilute De-Fuse in a separate jug of water and slowly add the diluted solution to the nutrient reservoir.
Foliar Application
De-Fuse can also be used as a foliar spray.
A diluted foliar application may help treat plant surfaces affected by:
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Powdery mildew
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Botrytis
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Bud rot
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Other surface fungal contamination
Apply the spray evenly to affected foliage according to the recommended dilution rate.
Avoid excessive application and test on a small area first when treating sensitive plant varieties.
Non-Systemic Formula
De-Fuse is non-systemic, meaning it works through direct contact rather than being transported throughout the plant.
This makes it suitable for use in fruit, vegetable and ornamental growing programs when applied according to the product directions.
Because it is not absorbed and circulated through the plant in the same way as systemic treatments, it is designed to provide effective surface and root-zone conditioning without leaving persistent harmful residues when used correctly.
Suitable Growing Media
De-Fuse is suitable for a wide variety of substrates and growing systems, including:
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Hydroponic systems
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Coco coir
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Rockwool
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Expanded clay pebbles
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Soil
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Pro-mixes
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Soilless substrates
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Recirculating nutrient systems
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Drain-to-waste systems
Application Rates
Water Treatment During Growing
Add De-Fuse to the nutrient tank weekly or whenever the reservoir is changed.
Young Plants and Cuttings
Mix at a rate of:
0.5 mL per litre of water
Use during the first two weeks of growth.
Established Plants
Mix at a rate of:
1 mL per litre of water
Apply with each nutrient tank change.
For Stronger, Established Plants
Mix at a rate of:
2–5 mL per litre of water
Apply weekly according to plant condition and growing requirements.
Foliar Spray
Mix at a rate of:
0.5 mL per litre of water
Spray plants weekly, ensuring even coverage of affected plant surfaces.
Application Rate Table
| Application | Mixing Rate | Frequency |
|---|---|---|
| Young plants and cuttings | 0.5 mL/L | During the first two weeks |
| Established plants | 1 mL/L | With every tank change |
| Stronger established plants | 2–5 mL/L | Weekly |
| Foliar spray | 0.5 mL/L | Weekly |
| System and water treatment | Follow plant-stage rate | Weekly or with tank changes |
Key Benefits
Versatile Horticultural Conditioner
De-Fuse can be used in nutrient tanks, irrigation systems, root zones, foliar applications and general grow-room cleaning.
Supports Cleaner Root Zones
The formula can be applied directly to the root zone to help maintain cleaner growing conditions.
Cleans Nutrient Systems
De-Fuse can be circulated through hoses, irrigation lines and hydroponic systems to help reduce contamination and buildup.
Foliar Treatment
It may be used as a diluted foliar spray to support the treatment of powdery mildew and Botrytis.
Suitable for Multiple Substrates
De-Fuse can be used in soil, coco, rockwool, clay pebbles and other soil-free substrates.
Compatible with Nutrients
The product is compatible with most macro and micronutrient formulations.
Non-Systemic Action
De-Fuse acts through direct contact rather than circulating systemically through the plant.
Suitable for Routine Maintenance
It can be incorporated into regular reservoir changes and weekly crop-maintenance programs.
How to Use De-Fuse Safely
For best results:
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Measure the product accurately
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Follow the recommended application rate
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Turn off air pumps briefly while mixing
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Dilute separately before adding if excessive foaming occurs
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Avoid combining concentrated products directly
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Test foliar applications on a small area first
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Avoid spraying under intense light or high temperatures
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Use appropriate protective equipment when mixing and spraying
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Store securely and away from children
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Follow all instructions on the product label
Do not exceed the recommended rate unless specifically directed by the manufacturer.
Frequently Asked Questions
What is De-Fuse used for?
De-Fuse is used to condition nutrient water, clean hydroponic systems, treat root zones, flush hoses and apply foliar treatments for issues such as powdery mildew and Botrytis.
Can De-Fuse be used in hydroponics?
Yes. De-Fuse is suitable for hydroponic and soilless systems, including coco, rockwool and clay pebble setups.
Can De-Fuse be added to a nutrient tank?
Yes. It can be added during regular nutrient changes. Depending on the age and strength of the plants, the recommended rate ranges from 0.5 mL to 5 mL per litre.
Why does De-Fuse foam when added to water?
De-Fuse may temporarily create a frothy solution during mixing. The foam normally dissipates quickly. Turning off air pumps during mixing can help control excessive foaming.
Can De-Fuse be used as a foliar spray?
Yes. For foliar application, mix De-Fuse at approximately 0.5 mL per litre and spray weekly according to product directions.
Does De-Fuse help with powdery mildew?
De-Fuse can be used as a foliar treatment to support the management of powdery mildew on plant surfaces.
Can De-Fuse help treat Botrytis?
It may be used as a contact foliar spray to support the treatment of Botrytis or bud rot. Remove heavily affected plant material and improve airflow as part of a broader crop-management program.
Is De-Fuse systemic?
No. De-Fuse is a non-systemic product that works through direct contact.
Is De-Fuse compatible with nutrients?
It is compatible with most macro and micronutrient solutions. Avoid mixing concentrates directly and always monitor the nutrient solution after adding new products.
What substrates can De-Fuse be used with?
De-Fuse is suitable for soil, coco coir, rockwool, clay pebbles, professional mixes and other soil or soilless growing media.
Product Highlights
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Water and nutrient conditioner
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Hydroponic system sterilising agent
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Suitable for root-zone treatment
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Can be used as a foliar spray
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Supports the treatment of powdery mildew
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Supports the treatment of Botrytis and bud rot
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Suitable for cleaning hoses and irrigation lines
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Can be used to wipe down walls and equipment
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Compatible with most macro and micronutrients
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Non-systemic formula
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Suitable for fruits, vegetables and ornamental plants when used as directed
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Suitable for soil and soilless growing systems
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Works with coco, rockwool, clay pebbles and soil
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Suitable for weekly reservoir-maintenance programs
De-Fuse Nutrient Conditioner is a versatile solution for growers seeking cleaner nutrient systems, healthier root-zone conditions and flexible root or foliar application.
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Customer Reviews
Top-notch stuff. You can feel the quality. It's a proper piece of equipment that's built to last.
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Top-notch stuff. You can feel the quality as soon as you take it out of the box. Works perfectly.
I'm chuffed to bits with this. It's made a huge difference to my garden. The results are amazing.



